At least 10 people have been killed and 50 others injured after a blasts rocked a metro station in St. Petersburg, Russia.

Footage of the initial panic in the aftermath of the bombing, which occurred between Sennaya and Technology Institute stations, showed travelers commuters running and away from the wrecked metro carriage.

News agency Interfax cited a source as saying at least one of the blasts involved a device filled with shrapnel.

All metro stations in St. Petersburg have been temporarily closed down.

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